Liquid-fuel burner



Jan. l1, 1927.

O. WHITE LIQUID FUEL BURNER Filed May 4. 1926 AWV/ mmm

al f Will) f A Patented Jan. 11,1927.

UNITED STATES OSCAR WHITE. OF ST. LOUIS, MISSOURI.

LIQUID-FUEL BURNER.

Application mea may 4,

The invention relates to improvements in l'iquid fuelburners' of the type' in which the fuel is volatilized by contact with hot metal, is mixed with air and discharged in this mixed state for burning. ,t

It is the principal object of theinventmn to provide a new and improved, and greatly simplified device of the character set forth, yet one which will be highly efficient and in every way desirable.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, and illustrated in the accompanying drawing, in connection with a heating stove, it being understood however' that the device may be constructed in larger sizes for use in furnaces.

Figure 1 of the drawings is a side elevation partly broken away and in section, showing the application of the invention to a stove.

Figure 2 is an enlarged vertical sectional view thrugh the .burner construction.

Figure 3 is a sectional view online 3-3 v of Fig. 2.

` In the drawings above briefly described, illustrating the preferred form of construction, the numeral 5 designates a vertically elongated body preferably having ia. com pletely closed upper end 6 and a plurality of perforations Y7 below the closure. The lower portion of the body 5 is formed with an air inlet, and in the present disclosure, this inlet is in the form of a laterally turned elbow 8 which may communicate with a perforated pipe 9 leadingfrom a draft door 10 of a stove 11, or if desired, from the exterior of the stove. Preferably cast integrally with the lower end of the body 5, is a support 11 which may restupon and be suitably secured to the bottom 12 of the ash pit of a stove with which the device is used. f

Below the perforations 7, the body 5 is formed with a continuous, internal trough 13 which extends to an elevation' above the lowermost of said perforations, said trough being preferably cast integrallyJ with the body. A liquid fuel feed pipe 14 is positioned Vcentrally within the body 5, in the present disclosurefand has its upper end contracted to form a nozzle 14%"and provided with a fuel distributing head 15 which is preferably of the formation shown, the periphery of said head being spaced from the side walls of the body. In the present showing, the lower end of the pipe 14 is connected by an 1926. Serial No. 106,758.

elbow 16 with a fuel line 17 which passes from the exterior to the interior of the body 5, and may be connected with any source of fuel, for instance, an elevated tank 18. This fuel line 17 is preferably provided vwith two valves 19 and 20. lThe valve 19 may be adjusted according to the requirements, to produce either a low fire or a hotter flame, whereas the valve 20 is merely a cutoff valve to be used whenever necessary, for instance when cleanmg the burner or when use of the latter is not needed.

The periphery of the head 15 is disposed somewhat closer to the wall of .the body 5, than the inner wall of the troughil3, so that this trough will receive any liquid fuel descending from said head 15 and will collect it, and if the fuel risesin the trough to a sufficient extent, it will overflow through the lowermost of the perforations 7, into a combined, drip and pre-heating pan 2l which surrounds the body 5 below the trough and is preferably integral with said body.

Above the trough 13, the body 5 is preferably divided horizontally as indicated at 22, providing a readily removable upper section 23 for said body. This section may be removed from time to time for cleaning and when it is so removed, access is readily had to the trough 13, for the purpose of cleaning the latter.

In operating the device, the fuel supply is turned on until the fuel descending from the head 15 overflows from the trough 13 through the lowermost of the perforations 7, and this overflow is permitted until a desired quantity of the fuel has been collected in the pan 21.' Then, this collected fuel is ignited after first closing the valve 20, so that in burning, it willv initially heat the burner. The valve 20 is then again opened i and the fuel from nozzle 14a, striking the hot metal of the burner becomes immediately volatilized so that yit will thoroughly mix with the air entering through the pipe 9 and inlet 8, and this mixture discharges from the perforations 7 to produce a hot flame.

Any fuel which does not properly gasify, will descend from the distributing head 15 and will be caught in the troilgh 13, in which such boiling action'may take place as to insure cracking of the fuel and consequent volatilization thereof. Even if some of they fuel should collect in this trough without volatilizing it will overflow throughthe lowermost of the perforations 7, if it reaches the nov same, and will be caught in the pan 21, attention being' directed to the fact that the inner wall of the trough 13 extends to such a height as to prevent any of this fuel from overflowing from the trough 13 into the lower end of the body 5. At this point, attention may also be invited to the fact that the trough 13 provides a restricted internal portion in the body 5, through'which the upgoing air must pass, so that this air is somewhat checked and becomes highly heated, and then immediately expands above the trough for thorough mixture with thev gasilied fueln The invention, it Will be observed, is exceptionally simple and inexpensive, yet will be efficient, reliable and in every way desirable. On account of the existing advantages for the details disclosed, they are preferably followed. However, within the scope of the invention as claimed, variations may be made. For instance, instead of the nozzle formation 14' at the upper end of the pipe 14, any other suitable nozzle could be used for directing the fuel against the closure 6.

I claim:

1. A liquid fuel burner comprising a vertically disposed hollow body having a perforated up er portion and having an air inlet at its ower portion, a fuel supply pipe having aaupper end opening into the upper portion of said body and provided with a ueldistributing head whose periphery is spaced from the -side wall of said body, a trough around the inner side of said body under said perforated portion to receive fuel descending from the periphery of said fuel distributing head, and a drip and preheating pan surrounding said body under said perforated portion to receive fuel overflowing from the trough through the perforations, the inner wall of said trough extending to an elevation above the lower-most of said perforations to prevent possible overfiow of fuel'into the lower portion of the body.

2. A structure as specified in claim 1; said body being horizontally divided above said trough, to provide an upper section readily removable for cleaning and to give access to said trough for cleaning purposes.

3. A structure as specified in claim 1; said body being horizontally divided above said trough, to provide an upper section readily removable for cleaning and to give access to said trough for cleaning purposes, said trough and pan being integral with the lower section of said body, this section being formed at its lower end with an integral support.

In testimony whereof I have hereunto affixed my signature.

OSCAR WHITE. 

